Streaming data in c++ [closed]
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Closed 9 years ago.
Improve this questionThis is the code that streams the data i see when i run sampleclient.exe
for a rigid body?
What if I wanted to use the x y z qx qy qz qw point for other calculation? are they stored in an array i can access to do calculations in real time? I'm kinda of new at this, isn't RigidBodies[i]
an array, but it value keeps pointing to a different value...
printf("Rigid Bodies [Count=%d]\n", data->nRigidBodies);
for(i=0; i < data->nRigidBodies; i++)
{
printf("Rigid Body [ID=%d Error=%3.2f]\n", data->RigidBodies[i].ID,
data->RigidBodies[i].MeanError);
printf("\tx\ty\tz\tqx\tqy\tqz\tqw\n");
printf("\t%3.2f\t%3.2f\t%3.2f\t%3.2f\t%开发者_JS百科3.2f\t%3.2f\t%3.2f\n",
data->RigidBodies[i].x,
data->RigidBodies[i].y,
data->RigidBodies[i].z,
data->RigidBodies[i].qx,
data->RigidBodies[i].qy,
data->RigidBodies[i].qz,
data->RigidBodies[i].qw);
}
I assume you mean that the for loop prints different values each time. This is because of the line:
for(i=0; i < data->nRigidBodies; i++)
Each time the loop runs i
is incremented by one such that the array data->RigidBodies
is accessed at a different index.
We could even "expand" the loop to be the following:
i=0;
printf("Rigid Body [ID=%d Error=%3.2f]\n", data->RigidBodies[i].ID,
data->RigidBodies[i].MeanError);
..
i=i+1;
printf("Rigid Body [ID=%d Error=%3.2f]\n", data->RigidBodies[i].ID,
data->RigidBodies[i].MeanError);
..
While you are using the same array each time, you are accessing a different element inside of it. The index tells us what item in the array we want.
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